- a vertical rank or row.
- an arrangement of members, as leaves, at different heights on an axis so that their median planes coincide.
Origin of orthostichy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an imaginary vertical line that connects a row of leaves on a stem
- an arrangement of leaves so connected
C19: from ortho- + Greek stikhos line